how to drill a square

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To achieve a perfectly square hole when drilling, begin by marking a center point and drawing an X over it. Then, use a compass or straightedge to draw a circle around the X. Choose a drill bit that is slightly smaller than the desired hole size, and align the drill's pilot point with the center of the circle. Slowly apply even pressure while keeping the drill perpendicular, drilling through the entire circle. This technique ensures a perfectly square hole each time.